Keyboard



FIG. 1 is a perspective view of a keyboard showing a first embodiment ofmy new design;

FIG. 2 is a front view thereof;

FIG. 3 is an enlarged view of an indicated portion of FIG. 2;

FIG. 4 is a perspective view of a keyboard showing a second embodimentof my new design;

FIG. 5 is a front view thereof; and,

FIG. 6 is an enlarged view of an indicated portion of FIG. 5.

The broken line portions of the keyboard in all views representunclaimed portions of the claimed design and form no part thereof.

CLAIM The ornamental design for a keyboard, as shown and described.